Ok
You must use an if_v2 to skip field
This is the code to fill field only if COL1 have a value, edit with your COL number and xpath, you must use it in every field that use COL of csv
{
"Command": "if_v2",
"Target": "${!COL1}.length > 0",
"Value": ""
},
{
"Command": "type",
"Target": "xpath=//input[@name='name']",
"Value": "${!COL1}"
},
{
"Command": "end",
"Target": "",
"Value": ""
},